Improvement in extension attachments for stove-pipes



UNITED STATES OFFICE.

SAMUEL JOHNSON, OF JAMES CREEK, PENNSYLVANIA;

IMPROVEMENT IN EXTENSION ATTACHMENTS FOR STOVE-PIPES,

To all whom it may concern:

Be it known that I, SAMUEL JOHNSON, of James Creek, in the county ofHuntingdon and State of Pennsylvania, have invented a new and usefulImprovement in Extension Attachvention consists in the slotted bar, thescrew,

and the handnut, in combination with the adjacent lengths of stove-pipe,and in the combination of the linger-piece with the slotted bar, thescrew, the hand-nut, and the adjacent lengths of pipe, as hereinafterfully described.

A and B represent two adjacent lengths of pipe, one of which slips intothe other in the ordinary manner. To the lower part of the length ofpipe A, that slides into the other, B, is attached the lower end of abar, O, that is slotted longitudinally. The end of the bar that isattached to the pipe A is made with a shoulder or offset to raise thebody of the bar i I Specification forming part of Letters Patent No.136,922, dated March 18, 1673.

away from the pipe, as shown in- Fig. 2. The other or free end of thebar O should have an inwardly-projectin g iiange formed upon it to restagainst the side of the pipe'an-d steady the said bar O. To the lowerpart of the side of the otherlength of pipeB is attached a screw, D,which projects through the slotof' the bar O to receive the hand-nut E,so that by tightenin g the said nut the bar C will be clamped and theadjacent lengths of pipe will be held securely in place; and byloosening the said nut the lengths of pipe may be readily adjusted asrequired. To the lower part of the length B of pipe, upon the sideopposite the screwD, is attached aiinger-piece, F, as shown in Fig. 2,for convenience in adjusting the lengths A B of pipe, as required.

Having thus described my invention, I claim as new and desire to secureby Letters Pat` ent- 1. The slotted bar B, the screw O, and the hand-nutD, in combination with the adjacent length A B of pipe, substantially asherein shown and described.

2. The combination of the finger-piece F with the slotted bar O, thescrew D, the handnut E, and the adjacent lengths A B of pipe,substantially as herein shown and described.

SAMUEL JOHNSON.

Witnesses:

A. H. JOHNSTON, J. H. WINTRODE.

